From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 3 Jan 2023 10:58:22 +0000 (+0200)
Subject: Make symbols hidden by default on Linux
X-Git-Url: http://git.tdb.fi/?p=builder.git;a=commitdiff_plain;h=cb25b8db7131a48be0411a4ce6898f09c530687c

Make symbols hidden by default on Linux

This will encourage me to add the visibility decorations where necessary
and reduce work needed for porting to Windows.
---

diff --git a/plugins/gnu/gnucompiler.cpp b/plugins/gnu/gnucompiler.cpp
index ba74409..e4c050f 100644
--- a/plugins/gnu/gnucompiler.cpp
+++ b/plugins/gnu/gnucompiler.cpp
@@ -302,7 +302,10 @@ ExternalTask::Arguments GnuCompiler::_run(const ObjectFile &object, FS::Path &wo
 	if(binfo.threads && arch.get_system()!="windows" && arch.get_system()!="darwin")
 		argv.push_back("-pthread");
 	if(object.is_used_in_shared_library() && arch.get_system()!="windows")
+	{
+		argv.push_back("-fvisibility=hidden");
 		argv.push_back("-fPIC");
+	}
 
 	if((arch.get_type()=="x86" || arch.get_type()=="ppc") && !arch.is_native())
 		argv.push_back(format("-m%d", arch.get_bits()));